I am premusing if this page that is link to the actual products that are added to the membership site has a date format...

$today_date = date('F d Y');
$today = date("Y-m-d");

This is the add product page...

http://www.digitalresellersvault.com/template/add_product.html

If you look down you will see something called Billing Period: & Trial Period.. As far as I can tell that relate to that part? Am I correct?

If so I am wondering because there is already a date_added field under smp_member_products if I can use the same structure to be able to display a section where it allows me to choose the actual date that I wish to add the product to the site...

Just like when you create a wordpress blog posts, you can select which date to have it appear on...